package com.example.socialcontactapp.service;

import com.example.socialcontactapp.entity.Chat;
import com.example.socialcontactapp.utils.R;

import java.util.List;

/**
 * @Author: ruohao
 * @Date: 2022/8/2
 **/
public interface ChatService {
    R getChats(Long sender, Long receiver, Long before, Long after);
    R sendChat(Long sender, Long receiver, String content);
}
